So according to you, being rich makes you a psychopath and if you aren't you are dumb and weak-willed? Wow, your generalizations have taken on a whole new level today.

That's a rather gross oversimplification.

For most of our history we have been ruled by tyrants. Why do you think that is? Why do you think that trend continues, largely unabated? Why do even our democratically elected politicians exhibit so many psychopathic tendencies?